Mammographic system and apparatus

ABSTRACT

A mammographic apparatus comprises an identification information reader and the identification information reader transmits the cassette identification information read by the identification information reader together with the radiography execution information to the control apparatus, in the control apparatus, it becomes possible to automatically correlate the radiographic order information and the radiography execution information based on the cassette ID (identification information). Accordingly, since the radiologist can eliminate the selection work to select of the radiographic order information for correlating the radiography execution information prior to the radiography, the efficiency of radiographic work can be improved. In the case of mammography which conducts a plurality of radiographs with different radiographic body parts with different radiographic directions, since the selection operation can be eliminated, the radiologist does not need to move the control apparatus for a selection operation and especially, the efficiency of radiographic work can be improved.

CROSS-REFERENCE TO RELATED APPLICATIONS

This Application is a Continuation of U.S. patent application Ser. No.11/077,860, filed Mar. 11, 2005, now U.S. Pat. No. 7,039,155 issued May2, 2006, which, in turn, claimed the priority of Japanese PatentApplication No. 2004-089965 filed Mar. 25, 2004. The priority of bothApplications are claimed herein and both Applications are incorporatedherein by reference.

FIELD OF THE INVENTION

The present invention relates to a mammographic system and amammographic apparatus for taking mammographs or radiographs of breastimages.

BACKGROUND OF THE INVENTION

An image obtained by using X-rays is widely used for a medical image ofa diagnosis. In recent years, the medical image has been digitalized.For example, CR (Computed Radiography) apparatus is an apparatus whichallows a phosphor plate on which a stimulable phosphor layer is formedabsorbs X-rays passing through an object, scans the phosphor plate bylaser beams to stimulate X-ray energy stored in the phosphor layer toradiate phosphor rays and obtains image signals after converting thephosphor rays to electric signals by using light-electric conversion.

In a conventional method, when taking a radiograph of a patient, aradiologist records radiography execution information such as the amountof x-rays applied to the patient and the direction of radiograph of thepatient on a recording sheet. After that a supervisor gathers therecording sheet and controls the radiography execution information indatabase which is formed by inputting the radiography executioninformation into HIS (Hospital Information System) controllinginformation in a hospital or RIS (Radiology Information System)controlling information in a radiology for each patient. However,according to these controlling methods, the radiologist has to recordthe radiography execution information in the recording paper every timewhen conduction radiography and input the radiography executioninformation into HIS. The workflow was complicated and may betroublesome.

In recent years, utilized is a radiography system for simplifying theworkload of a radiography management system by connecting theradiographic apparatus to a control apparatus for controlling theoperation of the radiographic apparatus, obtaining the radiographyexecution information from the radiographic apparatus and uploading itinto HIS through a network. This is disclosed in Japanese PatentApplication Open to Public Inspection No. 2003-8815.

This radiographic system utilizing stimulable phosphor has two types ofsystems. One is a dedicated system including a phosphor plate (notportable) utilized for both taking a radiograph and reading out theimage on the phosphor plate. The other is a cassette type systemincluding a portable cassette with a phosphor plate therein capable oftransporting. Here, the radiography of the cassette type system will bedescribed by referring to FIG. 19.

As shown in FIG. 19, a cassette type mammographic system comprises aradiographic apparatus for taking radiographs of the medical images of apatient by using cassette, a reading apparatus for reading the medicalimage from the cassette and a control apparatus for controlling thereading apparatus to obtain read medial images. The control apparatus isarranged so that it can communicate with HIS or RIS.

In the mammographic system configured as described above, radiographicinformation, such as patient information, the name of a patient who isgoing to be an object and sexuality of the patient, and radiographicorder information, such as a radiographic body part of the patient andthe method of radiography, etc., are issued by HIS/RIS based on amedical doctor order prior to taking radiographs and delivered to thecontrol apparatus. In the control apparatus, when taking radiographs,order information is displayed as a list to do.

The workflow of the radiography in the radiographic system will bedescribed.

-   1) The radiologist selects radiographic order information for a    patient from the list of the radiographic order information    displayed in the control apparatus. The selection of the    radiographic order information may be conducted prior to the    radiography.-   2) The radiologist conducts a work called cassette registration to    clarify the relationship between the cassette to be used for the    radiograph and the radiographic order information. In the cassette    to be used, cassette ID is provided to identify the cassette among a    plurality of cassettes. The radiologist inputs the cassette ID    corresponding to the selected radiographic order information to the    control apparatus in the process of the registration work. In the    control apparatus, the selected radiographic order information is    displayed and the selected photographic order information and the    inputted cassette ID are correlated. The cassette ID registration    may be conducted after finishing the radiography. A method to    register the cassette ID prior to the radiography is called    pre-registration and a method to register the cassette ID after the    radiography is called after-registration.-   3) The radiologist takes radiographs by the radiographic apparatus    after confirming the patient to be an object and the radiographic    body part of the patient using displayed radiographic order    information. In the radiographic apparatus, once X-rays is    irradiated and a radiographic image is recorded onto the cassette,    radiography execution information is transmitted to the control    apparatus.-   4) The radiologist sets the cassette in a reading apparatus for    reading the cassette. In the reading apparatus, the medical images    and the cassette ID are read and the read medical images and the    cassette ID are transmitted to the control apparatus after    correlating the read medical images and the cassette ID.-   5) In the control apparatus, the selected radiographic order    information and the radiography execution information are    correlated. The medical image transmitted from the reading apparatus    has been correlated to the radiographic order information based on    the cassette ID. As a result, the medical images, the radiographic    order information and the radiography execution information are    correlated each other and transmitted to HIS or RIS as additional    information of the medical image.

However, according to the method described above, the radiologist has toselect the radiographic order information corresponding to theradiography execution information and the selection work is complicated.Especially, in the case of mammography, even for a patient, a pluralityof radiographies with different radiographic body parts combined withdifferent radiographic directions, such as MLO-L (medio lateraloblique-left breast), MLO-R (right breast), CC-L, (cranio caudal-leftbreast) and CC-R (right breast) is common. In such a case, theradiologist has to move to the reading apparatus to set the cassetteinto the reading apparatus, then come back to the control apparatus toselect the radiographic information and move to the radiographicapparatus. The work efficiency is not good.

SUMMARY OF THE INVENTION

An object of the present invention is to improve the efficiency ofradiographic work of mammographs by automating the correlation work ofmammographs, radiographic order information and the radiographyexecution information.

According to one aspect of the present invention, a mammographic systemcomprises at least a mammographic apparatus for taking a mammograph of apatient by irradiating X-rays onto the breast and for recording themammograph onto a medium in a cassette, a reading apparatus for readingthe mammograph out of the cassette, and at least a control apparatus forobtaining the mammograph, the control apparatus being connected with themammographic apparatus and the reading apparatus, the mammographicapparatus having an identification information reader for reading acassette identification information of the cassette used for taking themammograph and a communication section for transmitting radiographyexecution information including the cassette identification informationwhich has been read by the identification information device, whereinthe control apparatus comprises a memory section for storingradiographic order information, an input section for inputting thecassette identification information used for taking the mammograph, anda controlling section for correlating the cassette identificationinformation inputted by the input section with the radiographic orderinformation and storing in the memory section, and correlating theradiography execution information with radiographic order informationbased on the cassette identification information included in theradiography executing information transmitted from the mammographicapparatus and the cassette identification information included in theradiographic order information which has been stored in the memorysection.

According to one aspect of the present invention described above, sincea mammographic apparatus comprises an identification information readerand the identification information reader transmits the cassetteidentification information read by the identification information readertogether with the radiography execution information to the controlapparatus, in the control apparatus, it becomes possible toautomatically correlate the radiographic order information and theradiography execution information based on the cassette ID(identification information). Accordingly, since the radiologist caneliminate the selection work to select of the radiographic orderinformation for correlating the radiography execution information priorto the radiography, the efficiency of radiographic work can be improved.In the case of mammography which conducts a plurality of radiographswith different radiographic body parts with different radiographicdirections, since the selection operation can be eliminated, theradiologist does not need to move the control apparatus for a selectionoperation and especially, the efficiency of radiographic work can beimproved.

According to the another aspect of the present invention, even aplurality of reading apparatuses and a plurality of control apparatusesare set, the radiographic order information and the radiographyexecution information are correlated to the mammographs which areobtained from each reading apparatus based on the cassette IDinformation.

According to another aspect of the present invention, a mammographicsystem comprises a mammographic apparatus for taking a mammograph of apatient by irradiating X-rays onto a breast and for recording themammograph onto a medium in a cassette, a reading apparatus for readingthe mammograph out of the cassette, and a control apparatus forobtaining the mammograph which has been read out of the cassette,wherein the mammographic apparatus comprises a first identificationinformation reader for reading an cassette identification information tobe used for taking the mammograph, an information generating device forgenerating radiography execution information including key informationwhich correlates the radiography execution information with radiographicorder information, and a first communication section for transmittingthe radiography execution information including the key informationgenerated by the information generating device every time when takingthe mammograph and the cassette identification information which hasbeen read by the identification information reader, wherein the readingapparatus comprises a second identification information reader forreading the cassette identification information when the mammograph isread out of the cassette, and a second communication section fortransmitting the mammograph and the cassette identification read by thesecond identification information reader information to the controlapparatus, wherein the control apparatus comprises a memory section forstoring the radiographic order information including the keyinformation, and a controlling section for correlating the radiographyexecution information and the cassette identification informationreceived with the radiography execution information with theradiographic order information based on the key information included inthe radiography execution information transmitted from the mammographicapparatus and the key information included in the radiographic orderinformation stored in the memory section, and correlating the mammographwith the radiographic order information based on the cassetteidentification information correlated with the radiographic orderinformation and the cassette identification information transmitted fromthe reading apparatus with the mammograph.

According to the another aspect of the present invention describedabove, since a mammographic apparatus comprises an identificationinformation reader and the identification information reader transmitsthe radiography execution information including the identificationinformation and key information of a cassette read by the identificationinformation reader to the control apparatus, in the control apparatus,it becomes possible to correlate the radiographic order information andthe radiography execution information based on the key information, andalso correlate the mammographs to the radiographic order informationbased on the cassette ID information. Namely, it becomes possible tocorrelate the mammographs, radiographic order information and theradiography execution information. Accordingly, since the radiologistcan eliminate the selection work to select of the radiographic orderinformation for correlating the radiography execution information priorto the radiography, the efficiency of radiographic work can be improved.In the case of mammography which conducts a plurality of radiographieswith different radiographic body parts with different radiographicdirections, since the selection operation can be eliminated, theradiologist does not need to move the control apparatus for a selectionoperation every time when taking radiographs for a selecting work, andespecially, the efficiency of radiographic work can be improved.Further, since it is not necessary to register cassettes to be used forthe radiography in the control apparatus, it becomes possible toeliminate the registration work of the radiologist and miscorrelationover the plurality of radiographies. Also, since the cassette does notneed to be specified by the specific radiographic body part andradiographic direction, the efficiency of the radiographic work can beachieved.

According to the another aspect of the present invention, since amammographic apparatus comprises a reader for reading cassette IDinformation, the control apparatus of the mammographic system becomespossible to automatically correlate radiographic order information tothe cassette ID information based on the cassette ID information bytransmitting the cassette ID information together with the radiographyexecution information to the controller of the mammographic apparatus.

BRIEF DESCRIPTION OF THE DRAWING

FIG. 1 is a system configuration of mammographic system 100 being anembodiment of the present invention.

FIG. 2 is an external view of mammographic apparatus 10.

FIG. 3 is a side view of radiographic section 1 with radiographic table6 on which cassette C is set.

FIG. 4 shows radiographic table 6 provided with ID reader 3 f andcassette C provided with ID section C1.

FIG. 5 is a side view of radiographic section 1 to which phase contrastradiography is applied.

FIG. 6 is a functional block diagram main section 3.

FIG. 7 shows an example for explaining how to determine the radiographicbody part and the radiographic direction from the rotation angleinformation of main section I.

FIG. 8 is a functional block diagram of control apparatus 30.

FIG. 9 shows a data configuration of order file 361

FIG. 10 is a flowchart describing the first radiographic processexecuted in mammographic system 100.

FIG. 11( a) shows correct insertion example of cassette C.

FIGS. 11( b) and 11(c) show wrong insertion examples of cassette C.

FIG. 12 shows a correlation between a mammograph and radiographic orderinformation and the radiography execution information.

FIG. 13 shows a system configuration where a plurality of controllers 30and a plurality of reading apparatuses 50(s) are connected.

FIG. 14 is a flowchart of the second radiographic process executed inmammographic system 100 of the second embodiment of the presentinvention.

FIG. 15 shows a correlation between a mammograph and radiographic orderinformation and the radiography execution information.

FIGS. 16( a) and 16(b) are system configurations of mammographic system100 provided with cassette reader 70.

FIGS. 17( a) and 17(b) are system configurations of mammographic system100 provided with cassette reader 70.

FIGS. 18( a) and 18(b) are system configurations of mammographic system100 provided with PDA 80.

FIG. 19 is a system configuration of a conventional mammographicapparatus.

DETAIL DESCRIPTION OF THE EMBODIMENTS The First Embodiment

In the first embodiment of the present invention, an example forcorrelating cassette ID information with mammographs, radiographic orderinformation and the radiography execution information based on cassetteID information in a control apparatus in this embodiment, an IDinformation reader for reading the cassette ID information of a cassetteused when taking radiographs, is provided in a mammographic apparatusand read cassette ID information is transmitted to the controlapparatus.

Firstly, the configuration of the present invention will be explained.

FIG. 1 is a system configuration of mammographic system 100 being anembodiment of the present invention. As shown in FIG. 1, mammographicsystem 100 comprises mammographic apparatus 10, control apparatus 30 andreading apparatus 50. Mammographic apparatus 10 and reading apparatus 50are connected to control apparatus 30 so that information transmissionand receiving are available each other.

Mammographic apparatus 10 is an apparatus for irradiating X-rays againsta patient breast as an object to radiograph the breast. In thisembodiment, a mammographic apparatus in which a cassette is used forradiography will be described.

In FIG. 2, mammographic apparatus 10 is shown.

As shown in FIG. 2, mammographic apparatus 10 comprises radiographicsection 1 for irradiating X-rays for radiography, support column 2 andmain body 3. Radiographic section 1 is structured so that the height ofradiographic section 1 is adjustable along support column 2 (in thedirection shown in an arrow) according to the height of the breast ofthe patient. Further radiographic section 1 is structured so thatradiographic section 1 is capable of rotating on supporting shaft 4 forchanging the radiographic direction in the direction shown in an arrowB. Main body 1 can be not only manually rotated by a radiologist butalso rotated under the control of main body with which the radiologistoperates.

In radiographic section 1, X-ray source 5 for generating X-rays andradiographic table 6 to put a breast of the patient thereon areoppositely provided and pressing board 7 for sandwiching the breastplaced on radiographic table 6 to press the breast is arranged. A sideview of radiography is shown in FIG. 3. As shown in FIG. 3, radiographicsection 1 is structured so that cassette C can be set on radiographictable 6 and a cassette holder (not shown) for holding cassette C isprovided on radiographic table 6. Cassette C contains a phosphor platefor absorbing X-rays passing through an object for recording an X-rayimage. As a cassette, it is preferable that the cassette is a dedicatedcassette just for mammography and the cassette is structured so that oneside of the cassette radiographs the object as much closer as possibleto the chest walls of the patient.

FIG. 4 is a perspective view of radiographic table 6 and cassette C tobe set on radiographic table 6.

As shown in FIG. 4, ID section C1 on which a bar cords for showing ID isdisplayed is provided on cassette C. On the other hand, ID reader 3 ffor reading the bar cords displayed on ID section C1 of cassette C isprovided in radiographic table 6. ID section C1 of cassette C isprovided on the rear side of the recording surface of an X-ray image.Namely, it is provided on the surface facing to radiographic table 6 andthe center of one side which is positioned on the depth side in thecassette inserting direction not to be duplicated with the object. IDreader 3 f in radiographic table 6 is provided on the surface on whichcassette C is set and in the center of the side which is opposed to theobject.

The position of ID section C1 and ID reader 3 f is not limited to theposition shown in FIG. 4 if the both positions are identical whencassette C is set on radiographic table 6. The display method ofcassette ID in ID section C1 may be a bar code label on which bar cordsare printed.

Further, when phase contrast radiography, radiographic section 1 isstructured as shown in FIG. 5. As shown in FIG. 5, radiographic section1 comprises two pieces of pressure boards 7 and radiographic table 6under pressure boards 7. Two pieces of pressure boards 7 andradiographic table 6 are structured so that they can independently moveup and down. The height of pressure tables 7 and radiographic table 6can be adjusted according to the height of the object. In the case ofphase contrast radiography, since the size of a cassette is larger thanthe cassette used for normal radiography, (in normal radiography, 8×10inch size cassette is used, in phase contrast radiography, 14×17 inchcassette is used in magnification factor of 1.7) the size ofradiographic table 6 is expanded.

In the radiographic section 1, angle detecting section 8 for detectingthe rotating angle which the radiographic section 1 rotes on supportingshaft 4 as a rotary shaft is provided. Angle detecting section 8transmits the detected angle to main section 3 when taking radiographs.

The internal configuration of main section 3 will be described byreferring to FIG. 6.

As shown in FIG. 6, main section 3 comprises controller 3 a, inputsection 3 b, display section 3 c, memory 3 d, communication section 3 eand ID reader 3 f.

Controller 3 a comprises CPU (Central Processing Unit) and works with afirst radiation process program read from memory 3 d to generallycontrol an X-ray irradiation timing and an adjustment of an irradiationamount of X-ray source 5, the rotation control of radiographic section 1and radiography operation of each section in mammographic apparatus 10.Controller 3 a determines a radiography portion and the radiographydirection (it will be called a body part direction, hereinafter) basedon the rotation angle information when the rotation angle ofradiographic section 1 from angle detecting section 8 is inputted tocontroller 3 a.

An example of determination of the body part direction will be describedby referring to FIG. 7. FIGS. 7( a) and 7(b) are drawings showingpressure board 7 and radiography board 6 viewed from an object side. Asshown in FIGS. 7( a) and 7(b), assuming that the normal position whereradiographic section 1 does not rotate is set to 0 degree, andradiography section rotates in the counter clockwise by 30 degree totake a radiograph of a left breast with oblique presentation, thedetected rotation angle is “−30 degree”. As shown in FIG. 7( b), in acase that in order to take a radiograph of a right breast with obliquepresentation, the radiography section is rotated in clockwise by 30degree, the rotation angle “+30 degree” is detected. Namely, it isdetermined that when the detected angle falls “+”, the radiographic bodypart is a right breast and the detected angle falls “−”, theradiographic body part is a left breast. And when the rotation angle isbetween 0 and 15 degree, the radiographic direction is an up to downdirection (CC), and when the rotation angle is between 15 degree and 75degree, it is an oblique presentation, and when the rotation angle isbetween 75 degree and 90 degree, it is determined as an inside tooutside direction.

In the first radiographic process, controller 3 a generates executionresult in radiographic section 1 after the radiography such as, forexample, tube-voltage (unit; kV) of X-ray source 5, tube-current (unit;mA) value, X-ray irradiating amount (multiply the tube-current value andirradiating time (second)), pressure of pressure board 7 (a movingdistance of pressure board 7, unit; mm), a body part direction (shown bya character code. The first code shows a radiographic body part, R; aright breast, L; a left breast, and the second code shows a radiographicdirection, CC; an up to down direction, M; an inside to outsidedirection and MLO; medio lateral oblique presentation) as radiographyexecution information. And, controller 3 a allows control apparatus 30to contain cassette ID information (bar code data) read by ID reader 3 fwhen taking radiographs, to the generated radiography executioninformation and to transmit them to control apparatus 30 throughcommunication section 3 e.

Input section 3 b comprises keys for inputting various radiographyconditions and outputs operation signals corresponding to key operationsto controller 3 a. For example, numeric keys for inputting the tubevoltage, the tube current value and rotational angle value ofradiographic section 1 and various keys are provided.

Still, radiographic body part keys for inputting the radiographic bodypart of the radiography, for example, whether it was a left breast or aright breast in CC radiography and/or radiographic direction keys forinputting the rotation angle of radiographic section 1 may be provided.The radiographic direction keys comprise an up to down (CC) directionkey, an inside to outside direction key and an oblique direction keywhich correspond various radiographic directions. For example, when theinside to outside direction key is pushed, radiographic section 1 isautomatically rotated to the inside to outside direction for theradiography. When these radiographic direction keys are provide, theradiographic direction specified by the pushed key is included byconverting “+” or “−” to “a right breast” or “a left breast” in theradiography execution information.

Display section 3 c comprises display 31 c including LCD (Liquid CrystalDisplay) as shown in FIG. 2 and displays various display information,such as input information from input section 3 b and processed resultsby controller 3 a on display 31 c.

Memory 3 d comprises RAM (Random Access Memory) and ROM (Read OnlyMemory) and stores various programs of the first radiographic process ofthe present invention and/or a radiographic program of mammographs.Memory 3 d also temporally stores the processed results by controller 3a and stores various information such as the radiography executioninformation.

Communication section 3 e comprises a network interface card (it will bedescribed NIC hereinafter; Network Interface Card) or communicationinterface such as MODEM. Namely, a communication means is achieved bytransmitting the radiography execution information including cassette IDinformation to control apparatus 30 after the radiography bycommunication section 3 e.

ID reader 3 f is an identification information reader for readingcassette ID. ID reader 3 f comprises a bar code scanner. When aradiologist starts procedure for taking radiographs, ID reader 3 fautomatically starts reading cassette ID. Practically, ID reader 3 fexecutes light-scanning of the ID section C1 of cassette C set onradiographic table 6 to read bar cords displayed in ID section C1 andoutputs data to controller 3 a. In this embodiment, the cassette ID isread by using bar cords. However, the present invention is not limitedto this embodiment. For example, a radio IC tag storing the cassette IDdata may be adhered on the cassette ID and ID reader 3 f may be a systemcapable of reading stored ID data in the IC tag or other readingsystems.

Next, control apparatus 30 will be described.

FIG. 8 shows a functional block diagram of control apparatus 30.

As shown in FIG. 8, control apparatus 30 comprises control section 31,input section 32, display section 33, communication section 34, RAM 35and memory section 36.

Control section 31 comprises CPU, etc., and installs the firstradiographic process program (refer to FIG. 10), etc. and a systemprogram stored in memory 36 into RAM 35 to totally control a processoperation under the co-work of these programs.

In the first radiographic process program, prior to radiography,radiographic order information is selected. When cassette ID isinputted, the cassette ID is correlated to the radiographic orderinformation and stored in order file 361. This is called cassetteregistration. After the radiography, when the first radiographic processprogram receives radiography execution information from mammographicapparatus 10, it correlates the information related the radiography tothe radiographic order information based on the cassette ID contained inthe received radiography execution information and cassette ID containedin the radiographic order information of the selected patient and storedit in order file 361. When mammographs and cassette ID correlated tomammographs from reading apparatus 50 are received, radiographic orderinformation and radiography execution information are correlated to themammographs based on the cassette ID and the mammographs are stored inimage DB 362. This is called image registration. Namely, control meansis established by correlating mammographs, radiographic orderinformation and radiography execution information each other in controlsection 31.

Input section 32 comprises numeric keys, character keys, a keyboardincluding various functional keys and a touch panel structured into onebody together with display section 33 and outputs operation signalscorresponding to operated keys to control section 31. Namely, inputtingmeans can be realized by inputting cassette ID by operating inputsection 32. It also may be possible that by providing a bar code readerwith control apparatus 30, cassette ID may be inputted by readingcassette ID C1 by the bad code reader.

Display section 34 comprises LCD and/or CRT (Cathode Ray Tube) fordisplaying the list of the radiographic order information, mammographs,various operation screens or confirmation screen to confirm therelationship between the radiographic order information and theradiography execution information and various display information, suchas processed results by control section 31.

Communication section 34 comprises NIC and MODEM, etc., for transmittingand receiving information between external equipment. For example, priorto radiography, communication section 34 receives radiographic orderinformation from HIS and/or RIS (not shown) and after the radiography,receives radiography execution information from mammographic apparatus10. And communication section 34 also receives mammographs and cassetteID correlated to mammographs from reading apparatus 50.

RAM 35 forms a work area for temporally storing various programsexecuted by control section 31 and data associated with these programs.

Memory section 36 comprises magnetic or optical medium or semiconductormemory for storing the first radiographic process program and dataprocessed in each program other than a system program.

Memory section 36 is a memory means for memorizing radiographic orderinformation including key information and including order file 361capable of memorizing and updating the radiographic order information.As shown in FIG. 9, order file 361 stores the radiographic orderinformation based on identification information (it will be called orderID hereinafter) for independently identifying radiographic orderinformation. The radiographic order information includes a patient ID ofa patient to be an object, patient information, such as a patient name(it will be called patient information hereinafter), a body partdirection and radiography execution information including date of theradiography (it will be called radiographic information hereinafter).Cassette ID of a cassette used for radiography based on radiographicorder information and radiography execution information are correlatedto radiographic order information.

Reading apparatus 50 will be described.

Reading apparatus 50 is designed for reading mammographs recorded incassette C. Reading apparatus 50 comprises a image reading device forreading mammographs by irradiating excited light beams to a phosphorplate of set cassette C and photo-electrically converting thephoto-stimulated light beams, an identification information reader forreading cassette ID shown in ID section C1 of cassette C and acommunication device (not shown), such as NIC and/or MODEM. Readingapparatus 50 reads out medical images and cassette ID based on thecontrol of control apparatus 30 and the read medical images to which thecassette ID is correlated is transmitted to control apparatus 40.

Next, the operation of mammographic system 100 will be described. Thefirst radiographic process conducted in mammographic system 100 will beexplained by referring to FIG. 10. As a base for the explanation, inthis embodiment, it is assumed that since when taking radiographs ofbreast images, there is no case that the same radiograph is taken withthe same portion direction, when a plurality of terms of radiographicorder information is registered for a patient, each body part directionhas a different body part direction from each other.

In the first radiographic process shown in FIG. 10, the list of patientsto be radiographed is displayed in display section 33 of controlapparatus 30 based on the radiographic order information stored in orderfile 361. When a radiologist selects and inputs a patient to beradiographed among the patient listed and displayed on the displaysection 33, then the list of the radiographic order informationcorresponding to the selected patients to be radiographed is displayedin control apparatus 30 (step S1).

Then, the cassette registration of a cassette to be used for theradiography for a selected patient is conducted (step 2). When aradiologist inputs cassette ID of a cassette to be used for theradiography through input section 32 to control apparatus 30, inputtedcassette ID is correlated to the radiographic order informationdisplayed on the top of the list in control apparatus 30 and stored intoorder file 361. Here, it is assumed that for a selected patient, a leftbreast and a right breast with an up to down direction and an inside tooutside direction for each breast, total four terms of radiographicorder information that corresponds to four cassette registrations areregistered.

Then, the radiologist moves to a radiography room where mammographicapparatus 10 is set, with a plurality of cassettes C with which cassetteregistration has been done and sets cassette C which has been registeredbased on radiographic order information, on radiographic table 6 ofmammographic apparatus 10. The radiologist makes the patient being aradiographic object stand on a radiography position, and inputs aradiography start signal through input section 3 b after adjusting theradiography portion and the radiography direction for radiography. Inmammographic apparatus 10, cassette C has been set and the a radiographystart signal have been inputted (step S3), cassette ID of cassette Cwhich has been set is read (step S4). Then, in ID reader 3 f, it isdetermines whether cassette ID is correctly read (step S5).

As shown in FIG. 4, since ID reader 3 f is provided in a depth side inthe inserting direction, when ID section C1 is set in the surface facingto radiographic table 6 as shown in FIG. 11( a) and ID section C1 is putin the depth side in the inserting direction, ID reader correctly readsID section C1. However, as shown in FIG. 11( b), when cassette C isreversibly inserted so that cassette ID section C1 is positions in theentrance side in the inserting direction; as shown in FIG. 11( c), whenthe cassette surface is reversibly inserted (upside down); or whencassette C is not fully inserted and not correctly inserted (not shown),since the readable area of ID reader 3 f does not coincide with theposition of ID section C1 of cassette C, reading of cassette ID is notcorrectly conducted.

Accordingly, when cassette C is wrongly inserted and ID reader 3 f donot correctly read cassette ID (step S5; N), message announcing aread-error of cassette ID is displayed on display 3 c, and warning thatcassette C has been wrongly inserted (step S6). After the warning, theprocess returns to step S3 and insertion of cassette C is conductedagain.

On the other hand, when cassette c is correctly inserted and cassette IDis correctly read by ID reader 3 f (step S5; Y), in mammographicapparatus 10, X-rays are irradiated according to the radiographydirection inputted from input section 3 b and radiography is conducted.Namely, in one body part direction, one radiograph is taken (step S7).After the radiography, in mammographic apparatus 10, radiographyexecution information including cassette ID read by ID reader 3 f isgenerated and transmitted to control apparatus 30 (step S8).

When all radiographs for one patient have not been taken and followingbody part direction is scheduled (step S9; Y); in mammographic apparatus10, the process is returned to step S3; cassette C used for followingradiography is set; and the radiography operation described above isrepeated (step S3-S8). When all radiographs are taken (step S9; N), thisprocess finishes.

In control apparatus 30 where the radiography execution informationincluding cassette ID information from mammographic apparatus 10 isreceived, based on the received cassette ID and registered cassette IDwhich is correlated to radiographic order information of a selectedpatient, the radiography execution information is correlated to theradiographic order information and memorized in order file 361 (stepS10).

For example, as shown in FIG. 12, assuming that there are radiographicorder information from A to D for a selected one patient and cassetteregistrations have been done for each radiographic order informationfrom A to D, when radiography is conducted with the order of cassette10102, 10101, 10103 and 10104, radiography execution information W-Zwhich include each cassette ID information used in each radiographyoperation in the order of the radiography is transmitted to controlapparatus 30. In control apparatus 30, since cassette ID 10101 iscorrelated with radiographic oder information A, cassette ID 10102corresponding with radiographic order information B, cassette ID 10103corresponding with radiographic order information C and cassette ID10104 corresponding with radiographic order information D, radiographicorder information B is correlated with radiographic conduct informationW; radiographic order information A is correlated with radiographicconduct information X; radiographic order information C is correlatedwith radiographic conduct information Y; and radiographic orderinformation D is correlated with radiographic conduct information Z sothat cassette ID coincides with each other.

On the other hand, the radiologist carrying all cassette C used for theradiography moves to reading apparatus 50, sets one of cassette C intoreading apparatus 50 and inputs reading instruction after finishing aplurality of radiographies for a patient. In reading apparatus 50, whencassette C is set (step S11), mammographs and cassette ID are read fromthe set cassette C (step S12) and cassette ID is correlated with themammograph by writing the read cassette ID in a header area of the imagedata of mammograph. The mammograph with which a cassette ID iscorrelated is transmitted to control apparatus 30 from reading apparatus50 in the order by which the mammograph is read (step 13).

When reading all cassettes C(s) for one patient has not finished andthere is a next cassette to be read (step S14; Y), in reading apparatus50, the process is returned to the process of steps S11-S13 and repeatsthe reading operations of next cassette C being set. When reading allcassettes C has finished (step S14; N), this process finishes.

In control apparatus 30, when a mammograph is received from readingapparatus 50, it is stored into image database 362 and correlated withradiographic order information and radiography execution informationbased on cassette ID corresponding to the mammograph and cassette IDcorresponding to radiographic order information (step S15). Theradiographic order information and the radiography execution informationcorrelated to the mammography are attached to the mammograph asadditional information.

As shown in an example in FIG. 12, when cassette ID 10102 is correlatedwith mammograph data file mam1.jpg, cassette ID 103 is correlated withmammograph mam2.jpg and cassette ID 10104 is correlated with mammographmam4.jpg, radiographic order information B and radiography executioninformation W are correlated with mammograph mam1.jpg, radiographicorder information C and radiography execution information Y arecorrelated with mammograph mam2.jpg, radiographic order information Aand radiography execution information X are correlated with mammographmam3.jpg and radiographic order information D and radiography executioninformation Z are correlated with mammograph mam4.jpg.

A radiologist returns to control apparatus 30 to operate it afterfinishing the read operation of cassette C with reading apparatus 50.When finishing the correlation operation of the mammograph, radiographicorder information and radiography execution information in controlapparatus 30, a confirmation screen for confirming the correlationbetween mammograph and radiographic order information and radiographyexecution information is displayed in display 33 and finishing theprocess.

The radiologist moves for taking radiographs of the next patient afterconfirming the correlation by the confirmation screen. In mammographicsystem 100, the first radiographic process described above is repeatedagain from step S1.

As described above, providing ID reader 3 f for reading cassette ID inmammographic apparatus 10 and transmitting the read cassette ID togetherwith radiography execution information to control apparatus 30 allowcontrol apparatus 30 to automatically correlate a mammograph withradiographic order and radiography execution information based oncassette ID. Accordingly, the selection operation for selectingradiographic order information with which radiographic order informationis correlated by the radiologist prior to the radiography can beeliminated and the efficiency of radiographic work can be improved.

When taking radiographs of breast images, since it is common to take aradiograph or a plurality of radiographs of each left and right breastwith an up-down direction, an inside-outside direction and an obliquedirection, at least not less than two radiographs per a patient areobtained. Accordingly, registering all cassettes to be used for apatient prior to the radiography makes it possible to continuously takea plurality of radiographs for the patient and to reduce the workload ofthe radiologist because the radiologist can complete the radiographywith only one movement to a control apparatus, a mammographic apparatusand a reading apparatus.

Since the correlation is obtained by using cassette ID, the radiologistdoes not need to memorize which cassette has taken radiograph with whichbody part direction and it reduces radiologist workload.

In mammographic apparatus 10, since radiographic table 6 is structuredinto one configuration together with ID reader 3 f and ID section C1 ofcassette C is automatically read, the radiologist does not need to inputcassette ID and it is not only convenient but also can prevent theradiologist from conducting a human error of the radiologist such asoblivion of inputting cassette ID. When cassette C has not beencorrectly set and the cassette ID cannot be correctly read, the warningis displayed. Accordingly, cassette miss-reading can be prevented andmiss-radiography based on wrong setting of cassette C can also beprevented.

The description of the first embodiment is an preferable embodiment ofmammographic system 100 to which the present invention is applied andnot limited to this embodiment.

For example, according to the description above, a continuous workflow,which conducts registrations of a plurality of cassettes for a pluralityof radiographs for a patient is described. However, the presentinvention is not limited to this but it may be a workflow, which conductregistrations of a cassette for a radiography. In this case, in everyradiography, a mammograph, radiographic order information andradiography execution information are correlated based on cassette ID incontrol apparatus 30 same as the description above.

In the description above, an example in which cassette registration isconducted prior to the radiography is described. However, it may be doneafter the radiography. In the latter case, after selecting a patient tobe a radiographic object, taking radiographs with mammographic apparatus10 without conducting the cassette registration, then cassetteregistration of cassette C, which is used with radiographic orderinformation of a patient who has been selected in control apparatus 30,is conducted after finishing image reading in reading apparatus 50. Incontrol apparatus 30, a mammograph, radiographic order information andradiography execution information are correlated each other based on theregistered cassette ID, and the mammograph and cassette ID read byreading apparatus 50.

Although it is desirable that with regard to read timing of the cassetteID in ID reader 3 f, since it can warn of a reading error and can bemade to reset with cassette C before photography, when it is not able tocorrectly read the cassette C before photography, as mentioned above, itmay be read after the radiography. In either case, from the viewpointfor raising the certainty of cassette ID used for the radiography, it ispreferable that the cassette ID should be read right before or rightafter the radiography. Further, in this embodiment, although ID reader 3f and radiographic table 6 are structured into a body, it may bepossible to structure a handy type ID reader 3 f so that the radiologistcan operate the handy type ID reader 3 f to read ID section C1 whentaking radiographs.

In mammographic system 100 described above, although an exampleincluding one control apparatus 30 and one reading apparatus 50 isexplained, as shown in FIG. 13, the present invention can be applied toa system configuration to which a plurality of control apparatuses 30(s)and a plurality of reading apparatuses 50(s) are connected through anetwork. In this case, since cassette registration can be conducted inan arbitrary control apparatus 30, a server SV for controlling the routeto transmit the read mammographs read from cassette C by each readingapparatus 50 to a certain control apparatus 30, should be provided. Whencassette registration is conducted, each control apparatus 30 transmitsthe registered ID and controller ID to identify each control apparatus30 in which the cassette registration is conducted. Sever SV correlatescassette ID registered from each control apparatus 30, with controllerID of control apparatus 30 in which the cassette registration isconducted, and memorizes them. Each reading apparatus 50 issues aninquiry of destination of the mammograph based on the cassette ID whenreading the cassette ID of cassette C to server SV, and server SVtransmits controller ID corresponding to cassette ID which is inquiredto reading apparatus 50 as a response. Reading apparatus 50 transmitsthe mammograph and cassette ID to control apparatus 30 of whichcontroller ID is specified by server Sv.

Even though a plurality of reading apparatuses 50(s) and a plurality ofcontrol apparatuses 30(s) are provided, it is possible for each controlapparatus 30 to control each reading apparatus 50 to correlateradiographic order information and radiography execution informationwith mammographs.

It is possible to modify a detailed configuration and detailed operationof mammographic system 100 being the first embodiment of the presentinvention without departing from the spirit and scope of the invention.

The Second Embodiment

In the second embodiment of the invention, a mammographic apparatus isarranged so that it transmits cassette identification informationtogether with body part direction information as key information. In thecontrol apparatus, radiography execution information and the cassetteidentification information are correlated to radiographic orderinformation. Based on this correlation, mammographs, radiographic orderinformation and radiography execution information can be correlatedwithout conducting a cassette registration. Following is an explanationof the second embodiment of the invention.

The configuration of the second embodiment will be described.

Since the mammographic system of the second embodiment is the sameconfiguration as mammographic system 100 of the first embodiment, thesame code is attached to the same portion of the configuration and theillustration will be eliminated. Namely, mammographic system 100 of thesecond embodiment of the invention comprises mammographic apparatus 10,control apparatus 30 and reading apparatus 50.

Since the configuration of mammographic apparatus 10 is the same of thefirst embodiment (refer to FIGS. 2-7), the detail description will notbe described here.

In mammographic apparatus of the second embodiment, radiographyexecution information is generated in controller 3 a and body partdirection determination is conducted by controller 3 a based on arotation angle of radiographic section 1 detected by angle detectingsection 8. The determined body part direction information is included inradiography execution information as key information for correlating theradiography execution information with radiographic order information,and the radiography execution information including the key informationand the cassette ID of a cassette, which is read when takingradiographs, are transmitter to control apparatus 30 by communicationsection 3 e.

Since the configuration of control apparatus 30 is the same as the firstembodiment (refer to FIGS. 8-9), it will not be described here.

In control apparatus 30 of the second embodiment, control section 31correlates the radiography execution information with radiographic orderinformation based on the body part direction information included in theradiography execution information transmitted from mammographicapparatus 10 and the body part direction information included in theradiographic order information memorized in memory 36, every time whentaking radiographs. When a mammograph and cassette ID information aretransmitted from reading apparatus 50, the mammograph transmitted fromreading apparatus 50 and radiography execution information arecorrelated based on the received cassette ID and cassette ID included inradiography execution information correlated with radiographic orderinformation. Namely, the mammograph is correlated with radiographicorder information based on radiography execution information.

Reading apparatus 50 reads mammographs recorded on cassette C. Readingapparatus 50 comprises an image reading device, an identificationinformation reader and a communication device, like the firstembodiment. Mammographs and cassette ID are read from a cassette set inreading apparatus 50 by the identification information reader and theread mammographs and cassette ID information is transmitted to controlapparatus 30 by the communication device.

The operation of mammographic system 100 of the second embodiment of theinvention will be described. The second radiography process performed bymammographic system 100 will be described by referring to FIG. 14. As abase for the explanation, in this embodiment, it is assumed that sincewhen taking radiographs of breast images, there is no case that the sameradiograph is taken with the same portion direction, when a plurality ofterms of radiographic order information is registered for a patient,each body part direction has a different body part direction from eachother.

In the second radiographic process shown in FIG. 14, the list ofpatients to be radiographed is displayed in display section 33 ofcontrol apparatus 30 based on the radiographic order information storedin order file 361. When a radiologist selects and inputs a patient to beradiographed among the patient listed and displayed on the displaysection 33, then the list of the radiographic order informationcorresponding to the selected patients to be radiographed is displayedin control apparatus 30 (step S101).

When a radiologist confirms radiographic order information displayed oncontrol apparatus 30, the radiologist moves to a radiography room wheremammographic apparatus 10 is set, with a plurality of cassettes C andsets an arbitrary cassette C on radiographic table 6 of mammographicapparatus 10. The radiologist makes the patient being a radiographicobject stand on a radiography position, and inputs a radiography startsignal through input section 3 b after adjusting the radiography portionand the radiography direction for radiography. In mammographic apparatus10, cassette C has been set and the a radiography start signal have beeninputted (step S102), cassette ID of cassette C which has been set isread (step S103). Then, in ID reader 3 f determines whether cassette IDis correctly read (step S104).

As shown in FIGS. 11( b) and 11(c), when cassette C is wrongly insertedand ID reader 3 f do not correctly read cassette ID (step S104; N),message announcing a read-error of cassette ID is displayed on display 3c, and warning that cassette C has been wrongly inserted (step S105).After the warning, the process returns to step S102 and insertion ofcassette C is conducted again.

On the other hand, when cassette c is correctly inserted and cassette IDis correctly read by ID reader 3 f (step S104; Y), in mammographicapparatus 10, X-rays are irradiated according to the radiographydirection inputted from input section 3 b and radiography is conducted.Namely, in one body part direction, one radiograph is taken (step S106).After the radiography, in mammographic apparatus 10, the body partdirection is determined from the rotation angle of radiographic section1 (step S107) and radiography execution information including cassetteID read by ID reader 3 f is generated and transmitted to controlapparatus 30 (step S108). Furthermore, in a CC radiography, L or Rinformation could be added to the radiography execution information fromthe inputting section by the radiologist.

When all radiographs for one patient have not been taken and followingbody part direction is scheduled (step S109; Y); in mammographicapparatus 10, the process is returned to step S102; cassette C used forfollowing radiography is set; and the radiography operation describedabove is repeated (step S102-S109). When all radiographs are taken (stepS109; N), this process finishes.

In control apparatus 30, when the radiography execution informationincluding cassette ID information and radiographic portion directioninformation from mammographic apparatus 10 are received, the radiographyexecution information is correlated to the radiographic orderinformation based on the radiographic portion information included inthe radiographic execution and the radiographic portion directioninformation included in the radiographic order information of a selectedpatient and memorized in order file 361 (step S110).

For example, as shown in FIG. 12, supposing that there are radiographicorder information A (body part direction; RCC), radiographic orderinformation B (body part direction; RM), radiographic order informationC (body part direction; LCC) and radiographic order information D (bodypart direction; LM) for a selected one patient and radiography executioninformation W-Z which include each body part direction information istransmitted to control apparatus 30. In control apparatus 30,radiographic order information B is correlated with radiographic conductinformation W; radiographic order information A is correlated withradiographic conduct information X; radiographic order information C iscorrelated with radiographic conduct information Y; and radiographicorder information D is correlated with radiographic conduct informationZ.

On the other hand, the radiologist carrying all cassette C used for theradiography moves to reading apparatus 50, sets one of cassette C intoreading apparatus 50 and inputs reading instruction after finishing aplurality of radiographies for a patient. In reading apparatus 50, whencassette C is set (step S111), mammographs and cassette ID are read fromthe set cassette C (step S112) and cassette ID is correlated with themammograph by writing the read cassette ID in a header area of themammograph. The mammograph with which a cassette ID is correlated istransmitted to control apparatus 30 from reading apparatus 50 in theorder by which the mammograph is read (step 113).

When reading all cassettes C for one patient has not finished and thereis a next cassette to be read (step S114; Y), in reading apparatus 50,the process is returned to the process of steps S111-S113 and repeatsthe reading operations of next cassette C being set. When reading allcassettes C is finished (step S114; N), this process finishes.

In control apparatus 30, when mammograph is received from readingapparatus 50, it is stored into image database 362 and correlated withradiographic order information and radiography execution informationbased on cassette ID corresponding to the mammograph and cassette IDcorresponding to radiographic order information (step S115). Theradiographic order information and the radiography execution informationcorrelated to the mammography are attached to the mammograph asadditional information.

As shown in an example in FIG. 15, when cassette ID 10102 is correlatedwith mammograph data file mam1.jpg, cassette ID 10103 is correlated withmammograph mam2.jpg, cassette ID 10101 is correlated with mammographmam3.jpg and cassette ID 10104 is correlated with mammograph mam4.jpg,radiographic order information B and radiography execution information Ware correlated with mammograph mam1.jpg, radiographic order informationC and radiography execution information Y are correlated with mammographmam2.jpg, radiographic order information A and radiography executioninformation X are correlated with mammograph mam3.jpg and radiographicorder information D and radiography execution information Z arecorrelated with mammograph mam4.jpg.

A radiologist returns to control apparatus 30 to operate it afterfinishing the read operation of cassette C with reading apparatus 50.When finishing the correlation operation of the mammograph, radiographicorder information and radiography execution information in controlapparatus 30, a confirmation screen for confirming the correlationbetween mammograph and radiographic order information and radiographyexecution information is displayed in display 33 and finishing theprocess.

The radiologist moves for taking radiographs of the next patient afterconfirming the correlation by the confirmation screen. In mammographicsystem 100, the first radiographic process described above is repeatedagain from step S101.

As described above, providing ID reader 3 f for reading cassette ID inmammographic apparatus 10 and transmitting the read cassette ID togetherwith radiography execution information to control apparatus 30 allowcontrol apparatus 30 to automatically correlate a mammograph withradiographic order and radiography execution information based oncassette ID. Accordingly, the selection operation for selectingradiographic order information with which radiographic order informationis correlated by the radiologist prior to the radiography can beeliminated and the efficiency of radiographic work can be improved.

When taking radiographs of breast images, since it is common to take aradiograph or a plurality of radiographs of each left and right breastwith an up-down (CC) direction, an inside-outside direction and anoblique direction, at least two radiographs per a patient are obtained.Accordingly, by registering a patient to be a subject prior to theradiography, it becomes possible to continuously take a plurality ofradiographs of the patient, which reduces the workload of theradiologist. Since the radiologist can complete the radiography withonly one movement to a control apparatus, a mammographic apparatus and areading apparatus during the radiography.

Further, it is not necessary to register cassette C to be used forradiography and it can reduce the workload of a radiologist. Since it isnot necessary to memorize each relation of cassette ID and radiographicportion direction over the plurality of cassettes prior to theradiography or after the radiography, the efficiency of radiography workcan be improved and miscorrelation is eliminated.

In mammographic apparatus 10, since radiographic table 6 is integratedwith ID reader 3 f and ID section C1 of cassette C is automaticallyread, the radiologist does not need to input cassette ID and it is notonly convenient but also can prevent the radiologist from conducting ahuman error of the radiologist such as oblivion of inputting cassetteID. When cassette C has not been correctly set and the cassette IDcannot be correctly read, the warning is displayed. Accordingly,cassette miss-reading can be prevented and miss-radiography.

The contents of the description for the second embodiment of theinvention is a preferable embodiment of the invention and not limited tothis embodiment. Although it is desirable that with regard to readtiming of the cassette ID in ID reader 3 f, since it can warn of areading error and can be made to reset with cassette C beforephotography, when it is not able to correctly read the cassette C beforephotography, as mentioned above, it may be read after the radiography.In either case, from the viewpoint for raising the certainty of cassetteID used for the radiography, it is preferable that the cassette IDshould be read right before or right after the radiography. Further, inthis embodiment, although ID reader 3 f and radiographic table 6 arestructured into a body, it may be possible to structure a handy type IDreader 3 f so that the radiologist can operate the handy type ID reader3 f to read ID section C1 when taking radiographs.

In the second embodiment of the invention, as shown in FIG. 13, thepresent invention can be applied to a system configuration to which aplurality of control apparatuses 30(s) and a plurality of readingapparatuses 50(s) are connected through a network. In this case, sincecassette registration can be conducted in an arbitrary control apparatus30, a server SV for controlling the route to transmit the readmammographs read from cassette C by each reading apparatus 50 to acertain control apparatus 30, should be provided. In the secondembodiment of the invention, since cassette registration is notconducted, each control apparatus 30 receives radiography executioninformation including cassette ID and body part direction informationout of mammographic apparatus 10. When body part direction is correlatedwith radiographic order information based on the body part directioninformation, order ID in the correlated radiographic order informationand cassette ID information included in the radiography executioninformation are correlated with control apparatus ID and it istransmitted to sever SV.

Server SV stores order ID and cassette ID and control apparatus IDreceived from each control apparatus 30. Each reading apparatus 50inquires of destination of mammographs to server SV based on cassette IDof cassette C when reading the cassette ID and server SV transmits thecontrol apparatus ID corresponding to cassette ID of which destinationis inquired to reading apparatus 50 as a response. Reading apparatus 50transmits the mammograph to control apparatus 50 whose control-apparatusID is specified by server SV. As described above, even though aplurality of reading apparatuses 50(s) and a plurality of controlapparatuses 30(s) are provided, radiographic order information andradiography execution information can be correlated with mammographobtained based on the control of each reading apparatus 50 by eachcontrol apparatus 30.

In the case of a system configuration shown in FIG. 13, in order tospecify the destination, which is one of plural control apparatuses30(s), to which the radiography execution information generated bymammographic apparatus 10 is transmitted, mammographic apparatus 10 isarranged that mammographic apparatus 10 is connected to controlapparatus 30 with one to one (1:1) to be able to communicate topredetermined control apparatus 30 among the plural control apparatuses30(s). This one to one (1:1) relationship can be established by serverSV as following. Server SV specifies a communication party betweenmammographic apparatus 10 and control apparatus 30. For example, whentaking radiographs, control apparatus 30 issues request for takingradiographs to server SV and server SV specify control apparatus 30which issued the request for taking radiographs as a destination ofradiography execution information, and responds to mammographicapparatus 10. Mammographic apparatus 10 transmits radiography executioninformation including body part direction information and cassette IDinformation to control apparatus 30 specified as the one to one (1:1)relationship.

Or, the system configuration can be arranged so that mammographicapparatus 10 comprises a fist communication mode capable ofcommunicating specified control apparatus 30 and a second communicationmode capable of communicating arbitrary control apparatus 30. Whileradiography is not conducted, the second communication mode is set andmammographic apparatus 10 is set to communicate to arbitrary controlapparatus 30. When any one of control apparatuses 30(S) issues requestfor taking radiography, mammographic apparatus 10 switches thecommunication mode to the first communication mode having one to onerelationship, capable of communicating with control apparatus whichissued the request. When finishing the radiography, the communicationmode is switched back to the second communication mode.

In FIG. 13, a system including one mammographic apparatus 10 connectedto a network is shown. However, a plurality of mammographic apparatuses10(s) may be connected the network. In this case, in order to specifythe target to which the radiography execution information is sent, eachmammographic apparatus 10 are arranged to communicate to onlypredetermined and specified control apparatus 30. Or, it may be allowedthat the relationship between mammographic apparatus 10 and controlapparatus 30 being one to one (1:1) is arranged so that there is aplurality of combinations of the relationship in the systemconfiguration. Or, as described above, server SV may conduct acommunication control for changing a communication mode so thatmammographic apparatus 10 which is specified to take radiographs andcontrol apparatus 30 which has issued request for taking radiographs arearranged to establish the one to one (1:1) relationship. Instead ofproviding sever SV, the control function of server SV may be conductedby control apparatus 30.

Further, in the second embodiment of the invention, mammographicapparatus 10 comprises ID reader 3 f as a identification informationreader to read cassette ID. However, when mammographic apparatus 10cannot provide ID reader 3 f therein, as shown in FIG. 16( a), cassetteID reader 70 having an identification information reader, such as abarcode reader, to read cassette ID displayed in ID section C1 ofcassette C may be connected to mammographic apparatus 10. A generalpurpose computer having CPU, RAM, storage, display and an input sectionmay be used as cassette ID reader 70.

A radiography workflow in the system configuration will be describedbelow by using an example where mammography of L-MLO (left breast, mediolateral oblique direction) and R-MLO (right breast, medio lateraloblique direction) are conducted.

-   1) A radiologist sets a control apparatus near a radiology room to    display radiographic order information of a patient to be a subject    to know the necessary number of cassette based on the displayed    radiographic order information, then enters the radiology room.-   2) After the radiologist has cassette ID reader 70 read cassette ID    of cassette C to be used, sets cassette C on radiographic table 6,    set radiographic section 1 of mammographic apparatus to L-MLO (left    breast, oblique direction) and inputs radiographic section 1.-   3) In cassette ID reader 70, read cassette ID is transmitted to    mammographic apparatus 10. In mammographic apparatus 10, after    finishing radiography based on a radiographic direction, body part    direction is identified and radiography execution information    including the identified body part direction is generated and    transmitted to control apparatus together with cassette ID    information transferred form cassette ID reader 70. In control    apparatus 30, the radiography execution information and cassette ID    are correlated to radiographic order information based on the body    part direction (L-MLO) included in the received radiography    execution information.-   4) On the other hand, the radiologist set the cassette C onto    radiographic table 6 after has cassette ID reader 70 read cassette C    to be used for next time, set radiographic section 1 of mammographic    apparatus 10 to R-MLO (right breast, oblique direction) and inputs    the radiography direction.-   5) In cassette ID reader 70, the same as item 3), cassette ID is    transmitted to mammographic apparatus 10. In mammographic apparatus    10, after finishing the radiography conducted based on the    radiographic direction, cassette ID information transmitted from    cassette ID reader 70 is transmitted to control apparatus 30    together with radiography execution information including body part    direction information (R-MLO).-   6) The radiologist sets cassette C including mammographs of L-MLO    and R-MLO in reading apparatus 50 in turn to read the images. In    reading apparatus 50, cassette ID and mammographs are read from    cassette C. The cassette ID is correlated with the read mammographs    and transmitted.-   7) In control apparatus 30, radiographic order information and    radiography execution information are correlated with the    mammographs based on cassette ID correlated with received    mammographs.

As described above, since the radiologist allows the cassette ID readerto read cassette ID of cassette C to be used for radiography every timewhen taking a radiograph, cassette ID and radiography executioninformation can be correlated with radiographic order information incassette ID reader 70 in every photography. Accordingly, after finishingthe photography of one patient, mammographs, radiographic orderinformation and radiography execution information are correlated eachother based on cassette ID in control apparatus 30 by collectivelyloading the cassette c which the radiologist has used into readingapparatus 50.

As shown in FIG. 16( b), a system having cassette ID reader 70 providedbetween mammographic apparatus 10 and control apparatus 30 may bepossible. In this case, the radiologist makes cassette ID reader 70 readcassette ID of cassette C every time when radiograph is taken. Inmammographic system 100, radiography execution information includingbody part direction information from mammographic apparatus 10 istransmitted to cassette ID reader 70 in every radiography. In cassetteID reader 70, read cassette ID information is sent to control apparatus30 together with radiography execution information including the bodypart information. Mammographs and cassette ID from reading apparatus 50are transmitted to control apparatus 30. In control apparatus 30,mammographs, radiographic order information and radiography executioninformation are correlated each other base on body part directioninformation and cassette ID.

Further, as shown in FIG. 17( a), cassette ID reader 70 may be directlyconnected to control apparatus 30. In this case, the radiologist makescassette ID reader read cassette ID of cassette C every time whenradiography is conducted. In cassette ID reader 70, cassette ID istransmitted to control apparatus 30 just after the cassette ID is read.In mammographic apparatus 10, radiography execution informationincluding body part direction information is transmitted to controlapparatus 30 every time when a radiograph is taken. In control apparatus30, since every time when radiography is performed, radiographyexecution information including body part direction information frommammographic apparatus 10 and cassette ID from cassette ID reader arereceived, the received radiography execution information and cassette IDinformation are correlated according to the order which they arereceived, and radiography execution information and cassette ID arecorrelated with radiographic order information based on body partdirection information included in correlated radiographic executioninformation. Then, mammographs and cassette ID from reading apparatus 50are received, radiographic order information and radiographic executioninformation are correlated with the mammograph based on cassette ID.

As shown in FIG. 17( b), a system in which mammographic apparatus 10 isnot connected to control apparatus 30 but only cassette ID reader 70 isconnected to control apparatus 30 may be allowed. In this case, aradiologist inputs the radiography execution results of mammographicapparatus 10, which is radiography execution information into cassetteID reader 70. The same as the above, body part direction information isalso inputted and at the same time, cassette ID of cassette C is read.In cassette ID reader 70, inputted body part direction information,radiography execution information and read cassette ID information aretransmitted to control apparatus 30. When control apparatus 30 receivesbody part direction information, radiography execution information andcassette ID information from cassette ID 70 are received, mammographs,radiographic order information and radiography execution information arecorrelated each other based on body part direction information andcassette ID. In this system configuration, it is preferable that bysetting cassette ID reader 70 and mammographic apparatus 10 in the sameradiology room, radiologist does not need to move to input cassette C toreading apparatus 50 every time when taking a radiograph and/or does notneed to memorize the radiographic order with respect to the cassette Cto set the cassette in the radiographic order.

As shown in FIG. 18( a), a system including a specific control apparatus30 to which PDA (Personal Digital Assistance) 80 capable of beingtransportable is connected for communication instead of cassette IDreader 70 may be allowed. In this case, a radiologist inputs body partdirection information, radiography execution information and cassette IDinformation through PDA 80. PDA 80 transmits inputted body partdirection information, radiography, execution information and cassetteID information to the specific control apparatus 30 through a cradle(not shown). When control apparatus 30 receives body part directioninformation, radiography execution information and cassette IDinformation from PDA 80 and mammographs and cassette ID from readingapparatus 50, mammograph, radiographic order information and radiographyexecution information are correlated each other based on body partdirection and cassette ID. According to this system configuration, sincePDA is used it is convenient for a radiologist to conduct an inputoperation even though the radiologist is in a work.

As shown in FIG. 18( b), a system configuration including plural controlapparatuses 30(s), reading apparatuses 50(s) and PDAs 80(s) connectedthrough network N may be allowed. In this case, since arbitrary controlapparatus 30 can be accessed from PDA 80, an IP address of each controlapparatus 30 which can be accessible is registered into PDA 80 inadvance so that the radiologist can specify to which control apparatus30 cassette ID, body part direction information and radiographyexecution information are transmitted. As described above, a server SVmay be provide to control to which control apparatus 30 the mammographread by each reading apparatus 50 is transmitted. PDA 80 transmitsinputted body part direction information, radiography executioninformation and cassette ID information to control apparatus specifiedby a radiologist.

As shown above, although, plural control apparatuses 30(s), readingapparatuses 50(s) and PDAs 80(s) are provided in a system, each controlapparatus 30 can correlate radiographic order information andradiographic execution information with mammographs obtained from eachreading apparatus 50 based on body part direction and cassette IDinformation received from each PDA 80.

Further, even in the first embodiment of the invention, when ID reader 3f cannot be provided in mammographic apparatus 10, the systemconfigurations shown in FIGS. 16-18 can be applied. Accordingly, incontrol apparatus 30, radiographic order information and radiographyexecution information can be correlated with mammographs received fromreading apparatus 50.

In the second embodiment, obtained data of mammography is automaticallycorrelated to the key information, which means body part (right or leftbreast) and mammography direction (CC or MLO etc).

So, each obtained mammography could be automatically processed inconfigurations and allocated in such a format as FIG. 2D of U.S. Pat.No. 5,212,637 for viewing according to the key information.

Furthermore, before allocation, such a processing as extracting ROI(region of interest), tone characteristic and enhancement so on, isapplicable in each suitable manner according to the key information.

Of course, after allocation, aforementioned processing could beapplicable.

According to the another aspect of the present invention, since theradiographic order information and the radiography execution informationare correlated to the mammographs based on the cassette ID, it becomespossible to correlate the radiographic order information to theradiography execution information as additional information with regardto the mammographs and based on the additional information, it becomespossible to confirm radiography execution information of the mammographslater. Also it becomes possible to conduct precise image management.

According to another aspect of the present invention, since the cassetteID information is read while the cassette is set, cassette IDinformation can be securely read when taking radiographs.

According to the another aspect of the present invention, since thecassette ID information is automatically read while the cassette is setin a radiographic table, workload of the radiologist, such as inputtingcassette ID information by the radiologist is not necessary.Accordingly, it is not only convenient but also it prevents theradiologist from causing a mistake based on a human error, such asforgetting input-operation.

According to the another aspect of the present invention, the cassetteID information is read right before the radiography or right after theradiography, the miss usage of a cassette can be prevented and thecassette ID information of the cassette used for the radiography can besecurely read.

According to another aspect of the present invention, even a pluralityof reading apparatuses is set, the radiographic order information andthe radiography execution information are correlated to the mammographswhich are obtained from each reading apparatus based on the cassette IDinformation.

According to another aspect of the present invention, in mammographywhere a plurality of mammographs with different radiographic body partsand different body part directions is conducted, it becomes possible toallow the radiographic body part and/or the radiographic direction whichare/is useful information for correlating the radiographic orderinformation with the radiography execution information to be keyinformation.

According to another aspect of the present invention, since whenmammography is conducted for a patient for one time for each rightbreast and left beast, or a plurality of mammographs with a plurality ofradiographic directions is conducted for each right breast and leftbreast, it is common that the mammography is conducted on a right breastand a left breast in turn, the mammographs, the radiographic orderinformation and the radiography execution information are correlatedeach other based on only right and left information. Accordingly, itbecomes possible to improve the radiographic work efficiency especiallyin mammography where a plurality of radiographs with differentradiographic body parts and different radiographic directions isconducted many times.

According to the another aspect of the present invention, since thecassette ID information is read while the cassette is set in themammographic apparatus, the cassette ID information of the cassette usedwhen taking radiographs can be securely read.

According to the another aspect of the present invention, since thecassette ID information is automatically read while the cassette is setin a radiograph table, workload of the radiologist, such as inputtingcassette ID information by the radiologist is not necessary. Accordinglyit is not only convenient but also it prevents the radiologist fromcausing a mistake based on a human error, such as forgettinginput-operation.

According to another aspect of the present invention, the cassette IDinformation is read right before the radiography or right after theradiography, the miss usage of a cassette can be prevented and thecassette ID information of the cassette used for the radiography can besecurely read.

The detail configurations and operations of the first and secondembodiments of the invention may be changed and modified withoutdeparting from the scope and spirit of the present invention.

1. A mammographic system, comprising: a mammographic apparatus fortaking a mammograph of a subject by irradiating X-rays onto a breast andfor recording the mammograph onto a detector, and at least one controlapparatus for obtaining an obtained image of the mammograph which hasbeen obtained out of the detector, wherein the mammographic apparatuscomprises an image obtaining section to obtain the mammograph from thedetector, an information generating section for generating radiographyexecution information, with respect to the obtained image, including keyinformation which correlates the radiography execution information withradiographic order information, and a first communication section fortransmitting the radiography execution information including the keyinformation generated by the information generating section to thecontrol apparatus with the mammograph, wherein the control apparatuscomprises a memory section for storing the radiographic orderinformation including the key information, and a controlling section forcorrelating the radiography execution information from the mammographicapparatus with the radiographic order information based on the keyinformation included in the radiography execution information and thekey information included in the radiographic order information stored inthe memory section, and correlating the mammograph with the radiographicorder information based on the key information.
 2. The mammographicsystem of claim 1, wherein the key information is at least one ofradiographic body part information and radiographic directioninformation.
 3. The mammographic system of claim 1, wherein the keyinformation is information showing that a radiographic body part is aright breast or a left breast.
 4. The mammographic system of claim 1,wherein the first communication section transmits the radiographyexecution information including the key information generated by theinformation generating section to the control apparatus every time whentaking the mammography.
 5. A method of controlling for a mammographicsystem including a mammographic section for taking a mammograph of asubject by irradiating X-rays onto a breast and for recording themammograph onto a detector, an image obtaining section for obtaining themammograph out of the detector, and a control section for obtaining anobtained image of the mammograph which has been obtained out of thedetector, the method of controlling the mammographic system, comprisingthe step of: selecting and storing a radiographic order informationincluding key information in the control section, generating radiographyexecution information, with respect to the obtained image, including keyinformation which correlates the radiography execution information withradiographic order information, in an information generating section ofthe mammographic section; transmitting both of the radiography executioninformation including the key information generated by the informationgenerating section and mammograph obtained by the image obtainingsection to the control; correlating the radiography executioninformation with the radiographic order information based on the keyinformation included in the radiography execution information and thekey information included in the radiographic order information stored inthe control section; and correlating the mammograph with theradiographic order information based on the key information.
 6. Themethod of controlling for the mammographic system of claim 5, whereinthe key information includes an information of at least one of a bodypart and mammographic direction.
 7. The method of controlling for themammographic system of claim 6, further comprising: allocating themammography in a predetermined format according to the key informationin the control section.
 8. The method of controlling for themammographic system of claim 6, further comprising: processing the dataof the mammography for viewing according to the key information in thecontrol section.
 9. The method of controlling for the mammographicsystem of claim 5, further comprising the step of: transmitting both ofthe radiography execution information including the key informationgenerated by the information generating section and mammography obtainedby the image obtaining section to the control section every time whentaking the mammography.